Gathered about a little table in the room were four men, their heads close together, scrutinizing an object that lay between them. At first Frank could not make out what it was, but as one of the men leaned back in his chair, Frank, over his shoulder, recognized it.

Quickly he jumped from the barrel and whispered to Jack.

“You were right.”

“Right? How?” asked Jack.

“Bomb,” replied Frank briefly.

Jack stepped back in surprise.

“A bomb!” he exclaimed.

“Yes,” Frank repeated, “a bomb. They are examining it, or something. I can’t tell just what.”

“Couldn’t you hear what they were saying?”

“No; the window is closed.”